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From Daniel John Debrunner <...@apache.org>
Subject Re: [VOTE] Require Java 5 (or later) compiler to build Derby
Date Thu, 04 Oct 2007 15:22:37 GMT
Thomas Nielsen wrote:
> Daniel John Debrunner wrote:
>> Seems that it might be possible with this to start using some 1.5 
>> language constructs in Derby's code: those that compile down to 
>> standard byte code. This would be by using -source 1.5 -target 1.4 in 
>> the build.xml files.
> 
> Be *very* careful about what 1.5 language features you start using in 
> your code. It's not as easy as specifying -source 1.5 -target 1.4 to get 
> a 1.4 compatible class/jar.
> 
> If you end up using the "wrong" language constructs in your code, you 
> will become dependant on additional libraries like Retrowaver (or 
> similar) that implements the missing features/classes for you.

To be clear I explicitly meant Java language constructs (ie. JLS), not 
1.5 new methods or classes. As Bryan said if you could share your 
experience that would be helpful.

Dan.

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